Physics Quiz: Current Electricity Trivia Questions!
10 Questions
| Total Attempts: 4894
(294).jpg "Physics Quiz: Current Electricity Trivia Questions!")
Questions and Answers
- 1.Charge of 60 C passes through an electric lamp in 2 minutes. Then the current in the lamp is
- A.
0.5 A
- B.
30 A
- C.
1 A
- D.
5A
- 2.The material through which electric charge can flow easily is
- A.
Copper
- B.
Germanium
- C.
Quartz
- D.
Mica
- 3.The current flowing in a conductor is proportional to
- A.
Drift velocity
- B.
1/ area of cross section
- C.
1/no of electrons
- D.
Square of area of cross section.
- 4.A toaster operating at 240V has a resistance of 120Ω. The power is
- A.
480 W
- B.
400 W
- C.
2 W
- D.
240 W
- 5.If the length of a copper wire has a certain resistance R, then on doubling the length its specific resistance
- A.
Will remain the same
- B.
Will be doubled
- C.
Will become 1/4 th
- D.
Will become 4 times
- 6.When two 2Ω resistances are in parallel, the effective resistance is
- A.
1 Ω
- B.
2 Ω
- C.
0.5 Ω
- D.
4 Ω
- 7.In the case of insulators, as the temperature decreases, resistivity
- A.
Increases
- B.
Becomes zero
- C.
Decreases
- D.
Remains constant
- 8.
![If the resistance of a coil is 2 Ω at and α = 0.004 /, then its
resistance at is - ProProfs]( "If the resistance of a coil is 2 Ω at and α = 0.004 /, then its
resistance at is")
If the resistance of a coil is 2 Ω at and α = 0.004 /, then its resistance at is- A.
2.8 Ω
- B.
0 Ω
- C.
1.4 Ω
- D.
4 Ω
- 9.According to Faraday’s law of electrolysis, when a current is passed, the mass of ions deposited at the cathode is independent of
- A.
Resistance
- B.
Time
- C.
Charge
- D.
Current
- 10.When n resistors of equal resistances (R) are connected in series, the effective resistance is
- A.
NR
- B.
1/nR
- C.
R/n
- D.
N/R
Electricity is a part of our daily life. Humans cannot survive without it. Have you ever imagined how electricity is produced and what's the science behind it? Take this Electricity Trivia Quiz to unravel the science and...
Questions: 10 | Attempts: 22177 | Last updated: Jun 16, 2020
-
Sample QuestionA simple device that opens and closes an electrical unit is called a(an):
An electric current is a flow of electric charge. In electric circuits moving electrons in a wire often carries this charge. Electrical hazards can cause burns, shocks, and electrocution (death). Test your knowledge on...
Questions: 14 | Attempts: 8464 | Last updated: May 20, 2020
-
Sample QuestionReceiving an electric shock from a doorknob is an example of ____________.
How much do you know about the resistor color codes? This exam will test your ability to decode a resistor's color code and calculate the resistance and tolerance of a resistor. This skill is needed by technicians,...
Questions: 5 | Attempts: 7714 | Last updated: Jun 14, 2021
-
Sample QuestionThe resistor has 4 bands. Red, Green, Blue, Gold Which answer is correct?
Back to top